Wilsonville (OR) Precipitation: Average Monthly Rainfall and Snowfall
This graph shows the average amount of rainfall per month in Wilsonville (Oregon). The numbers are calculated over a 30-year period to provide a reliable average.
- A lot of rain (rainy season) falls in the months: January, March, November and December.
- Wilsonville has dry periods in July and August.
- On average, December is the wettest month with 181 mm of precipitation.
- On average, August is the driest month with 10 mm of precipitation.
- The average amount of annual precipitation is 1090 mm.
Current rainfall in Wilsonville (OR)
partly cloudy and slight rain
overcast and heavy rain
broken clouds and slight rain